Florian and Natali join divers Joop and Felicia Stahlenburg in making underwater willow tipis for the endangered cuttlefish to spawn in.

Toasting your friends and setting off fireworks is an essential part of the New Year celebration, but unfortunately the animals in the Berlin Zoo don't feel the same way! See how the Berlin Zoo tries to deal with the problems of inner-city fireworks and their animals. (video copyright dpa)

Florian and Natali finish a great first dive with the basking sharks and then make their way to the coast of Holland.

All across the country, refugees are now receiving German instruction from volunteers because they are not officially entitled to it when they first arrive. Three educators from Bavaria have developed their own teaching materials especially for this purpose. Sehr interessant!

The North Sea is an unpredictable and mysterious marine habitat, teeming with life. Join marine biologists Florian Graner and Natali Tesche-Ricciardi on an exciting adventure!

Annually over 100 million animals are lodged in Frankfurt's Animal Lounge. A wide assortment of living creatures are temporarily received, examined by a veterinarian and lovingly cared for. Viel Spaß!

Twenty-five years since the fall of the Berlin Wall: Peter Barsch lived in East Germany and, as a young man, spent time in prison because of his attempts to flee to the West. These days he tells his story while conducting bicycle tours through the capital. Sehr interessant! Copyright: Deutsche Presse Agentur [The German Press Agency]

Alpine Lakes, a nature documentary, leads us into the fascinating world of deep mountain lakes. When winter comes and the lakes freeze over, the fish under the thick ice cover have different ways of passing the time.

Alpine Lakes, a nature documentary, leads us into the fascinating world of deep mountain lakes. As snow covers the mountains, mammals and fish alike fight for survival.

In this video, misconceptions and prejudices regarding the influx of refugees in Europe and Germany are deconstructed. A must-see for anyone who wants to learn more about the situation!

Civil engineer Hermann Rothenhöfer offers a detailed look into the historic city of Karlsruhe, Germany. By walking past a variety of buildings, he documents the history and the change in style, lifestyles and the tastes of the people. Enjoy the beauty of this outstanding architecture!

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see the effects of global warming, from the melting ice on the mountains to the caves of Slovenia.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. Here we see the female perch defending her spawn from North American crayfish, and look at the role of glaciers in storing Alpine water.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In this part, we explore the mysterious "cow tracks" found throughout the Alps in stone. These are, in fact, ancient fossils from the time when this mountain range was an ocean floor.

Alpenseen (Alpine Lakes) is a nature documentary that shows us the fascinating world of deep mountain lakes. In this episode, we'll explore the mysterious "Lake of Blood" and some scandalous interspecies dating!